CDR CDR Sports Nutrition 2

Question 1

A distance runner asks about iron supplementation. Which form of dietary iron has the highest bioavailability?

Accepted Answer

Heme iron from animal sources

Answer

Heme iron from meat, poultry, and fish is absorbed at 15–35%, significantly higher than non-heme iron at 2–20%.

Question 2

What is the recommended fluid intake guideline for athletes exercising in a warm environment?

Accepted Answer

Consume 400–800 mL per hour based on sweat rate

Answer

Current guidelines recommend 400–800 mL/hour of fluid to prevent dehydration without causing overhydration.

Question 3

Which ergogenic aid has the strongest evidence base for improving high-intensity, short-duration exercise performance?

Accepted Answer

Creatine monohydrate

Answer

Creatine monohydrate has the most robust evidence for enhancing power output and lean mass in high-intensity, short-duration activities.

Question 4

A collegiate swimmer complains of fatigue and low ferritin levels. This presentation is MOST consistent with which condition common in endurance athletes?

Accepted Answer

Sports anemia (dilutional pseudoanemia)

Answer

Sports anemia is a benign dilutional effect of plasma volume expansion that can lower hemoglobin concentration without true iron deficiency.

Question 5

Which macronutrient should comprise the largest proportion of total calories in the diet of an endurance athlete?

Accepted Answer

Carbohydrates (55–65%)

Answer

Carbohydrates are the primary fuel for endurance performance and should constitute 55–65% of total energy intake.

CDR - Commission on Dietetic Registration Exam Practice Test

CDR - Commission on Dietetic Registration Exam Practice Test

CDR CDR Sports Nutrition 2